prowl
[verb]
Synonyms: move stealthily, skulk, slink, sneak, stalk, steal

[TahlilGaran] English Synonym Dictionary ▲

I. prowl¹ /praʊl/ verb [intransitive and transitive]

1. if an animal prowls, it moves around an area quietly, especially because it is hunting another animal

2. if someone prowls, they move around an area slowly and quietly, especially because they are involved in a criminal activity or because they are looking for something:
gangs of teenagers prowling the streets
prowl around/about British English:
Irene prowled restlessly around the room.

[TahlilGaran] Dictionary of Contemporary English ▲

II. prowl² noun
be/go on the prowl (for something/somebody)
a) if an animal is on the prowl, it is hunting
b) if someone is on the prowl, they are moving around different places, looking for an opportunity to do something:
local men out on the prowl (=looking for people to have a sexual relationship with) in the city’s bars and nightclubs
She’s always on the prowl for bargains.

[TahlilGaran] Dictionary of Contemporary English ▲